Dynamo-electric machine.



110.888,940. PATENTBD mms, 1808, E. M. TINGLBY 8L J. L. RAY. DYNAMOELEGTRIG MACHINE.

APPLIGATION FILED MAR. 17, 1905.

2 SHEETS-SHEBT 1.

No. 888,940. l PATENTBD MAY 26, 1908. E. M. TINGLEY-z J. L. RAY. DYNAMOELECTRIC MACHINE.

APPLICATION FILED MAR. 17, 1905.

2 SHEETS-SHEET 2.

wlTNEssEs: l lNvENToRs larities in form..

30; f cesses in the shaft, thereby `providing a per- 1 great mechanicalstrength.

n A Our invention is illustrated inthe accomv panying drawings, Figure1.1"` ofwfwhich f is Sta vievv,y partially in lonit-udina'lfqcross-section"` and partially in. side e evation, of partsof a of Fi 1. Y Fig. 4 is a sectional view on line 3 located in suitableend grooves 4 and 5, is provided, at, a `suitable distance from the1150v 'and JosEiui Loomis RAY, citizens of the' ,the county ofAllegheny' and State of Penn- 'sylvania, have invented a new and uselul-members of such machines.

Itliewinding of the rotatable member ol a i dynamo-electric machine withthe collector with.

`of the machine embodying our 'ingention 'ings'S andA 9 are seated inapertures 1() and n 11, With which the sleeve 6 is SYLVAN IA.

Specification of Letters Paten.

UNrrEn sfrarns parser onirica.,

DYAMO-ELECTRIC MACHINE.

parentesi/ray 2e, isos.

Application filed March 17, 1905. Scrillv lo. 250,644.

To all whom it may concern: Be it known that We, hGEu'r M. TiNoLEi'yUnited States, and residents of Pittsburg. in

Improvement in Dynamo-Electric Machinesy of'which the following is aspeCiiCatioD.

Our invention relates to' dynamo-electric machines, and particularly tothe rotatable Our invention has for its object to provide connectingmeans between the rotatable Winding of a dynamo-electric machine and thecollector rings which shall be entirely unexposed andwhich shall becapable ci resisting high centrifugal forces Without displacement orrupture. Y

rHeretofore, the conductors that connect rings have been sup ported byblocks or hands or lother suitable ineans upon the exterior of theshaft, forming a structure that possesses no great mechanical strengthand that causes considerable air friction and noise when rotating athigh speeds on account of its irregu- Accordingto our invention,.tlie.conductors are entirely embedded in the closed-reiectly smoothcylindrical lmember having machine constructed in l accordance there-Fig. 2 isa plan view of a part of the shaft of the inachine'shown inFig. 1. Fig. 3 is a transverse, sectional view on line lllbill IV- V fFig. 1, and Fig. 5 is an enlarged, longitudinal, sectional View yofcertain parts The shaft 1 of the rotatable member 2 of a dynamo-electricmachine, having a Winding Winding 3, with a sleeve 6 having a guardflange 7 at its outer end. Insulating bushrovided at olpposite sides.The inner su ace of the s eeye (1 is also provided with Vlongitudinalgrooves l2 and 13 that communicate wih the apertures 10 and'll.

Conductors 1-'1 and .ire )laced in the grooves l2 and 13, respective y,and their ends project through the apertures 1() and li in the sier-'vc6. The sleeve. 6 is wrapped with mica 16, or other suitable insulatingmaterial, und the ends of the conductors la and 1,5 :irc split and bentover upon the sur- 'lace oli the insulating material. The ends-oi I theconductors 14 and 15 and the insulating material 16 are secured inposition by nieans ol' bands 17 and 18, comprising a plurality ol" turnsolf anysuitable conducting wire. Conducting slip-rings 19 and 2() aresecurely litted over the bands 17 and 12S-by heating and shrinking or inany other suitable nianner,`

and the spaces between the rings 19 yand 2O and al. each side thereofare Wrapped with any suitable sheet insulating material 21 which may besecured in position by means of twine 22. A compact and durablestructure is in this manner provided, and permanent, eliectiveconnections are made between the conductors 14 and 15 and the conductingrings 19 and 2Q.- It is intended that brushes (not shown) shall engagethe slip-rings 19 and 2l), thereby providing means lor makingconnections to an external circuit.

The shalt 1 .is provided with diametricall opposite, longitudinalrecesses or grooves 23 and 24, which communicate, at one end, With thecorres ending grooves in the sleeve 6, the sides of tie recesses nearthe surface being providedwith keyways 25.

23'and 24 andconnect With the winding 3 of the rotatable ineinber 2. Theconductors are retained in position in the grooves by means oi shortkeys 26, which are adapted to fit into the keyways 25 and the topportions of the recesses 23 and 24. The sides of the recesses at theends nearest the rotatable .ineinber 2 are not rooved, but the recessesare widened, as s own at 27, in` order that the Wedges 26inay beinserted into the rooves,

the Wedges-being slivhtly shorter tian the open portions 27 of t erecesses. Tapered, rectangular Wedges 28are placed in the open portions27 and areretained in position by means of varies 29, which are castintegral with an end-bell 30 that kis secured to the end of therotatable member 2.

For the purpose of protecting the insulating material, With which theconductors 14 The conductors` .'14 and 15 are continued through thegroovesvk v and 15 are wrapped, from injury while the keys 26 are beinginserted, metallic strips 3l may be placed in the grooves over theinsulating material. The conductors 14 and l5 lead from the recesses 23and 24 through openings 32 left between the ends of the recesses and thewedges 2S and are connected with the winding 3 of the rotatable memberin any suitable manner.

1We claim as our invention:

1. The combination with a sleeve having one or more longitudinalrecesses in ,its internal circumferential surface, and lateral aperturescommunicating therewith, of conducting rings mounted upon the sleeveover the apertures but insulated from the sleeve and from each other,and electrical conductorsconnected to the conducting rings andcompletely embedded in the recesses and apertures.

2. The combination with a Vsleeve having one or more longitudinalrecesses in its inner circumferential surface, and lateral aperturescominunicatinfr therewith, ol' conductors completely embedded in thesaid recesses the ends of which project through the apertures, andconducting rings mounted upon the sleeve over the projecting ends of theconductors.

The combination with a shaft having one or more longitudinal grooves,and a sleeve having one or more internal, longitudinal grooves andcommunicating, lateral apertures, of conducting rings mounted upon thesleeve, and conductors completely inclosed within the grooves andapertures and connected to the conducting rings.

4. The combination with a slliaft having one or more longitudinalgrooves, vand a sleeve having one or more internal, longitudinal groovesand communicating, lateral apertures, of conductors completely inclosedwithin the grooves and having ends which project through the aperturesin the sleeve, and conducting rings mounted upon the sleeve over theprojecting ends of the conductors.

5. The combination with a shaft provided with one or more longitudinalgrooves having lateral keyways and open portions, keys for the keyways,and blocks for the open portions ol' the grooves, of means carried bythe shaft 'lor retaining the blocks in the open portions of the grooves.

6. The combination with a shaft provided with one or more longitudinalgrooves having lateral keyways and open portions, keys for the keywaysand blocks for the open )ortions of the grooves, o'll a member carriedby the shaft and pro`ecting vanes therefrom that retain the blocls inthe open portions of the grooves.

7. 'lhe combination with a shaft having one or more longitudinalgrooves, and a sleeve mounted thereon having corres onding grooves inits internal surface and) substantially radial apertures thatcommunicate with the internal grooves, of conductors located in thegrooves the ends of which project through the apertures in the sleeve,conducting rings mounted u ion the sleeve over the projecting ends of te conductors, and means for securing the conductors in the grooves inthe shaft.

8. 'lhe combination with a sleeve having lateral apertures, insulatingmaterial upon the sleeve, and conductors that project through theapertures and the insulating material, of conducting bands that bind theends of the conductors upon the insulating material, and collector ringsmounted upon the bands.

e. The combination with a. sleeve having lateral apertures, aninsulating band uponsaid sleeve and conductors inside the sleeve havingends that project through the sleeve apertures and the msulating hand,of wlre bands surroumling the conductor ends andA binding them to theinsulating band, and collector rings mounted uponI the wire bands.

ln testimony whereof, we have hereunto subscribed our names this 11thday of March, 1.905.

E IB ERT M. TINGLEY. JOSEPH L. RAY.

Witnesses WEsLEY G. CARR, BLRNEY lliNns.

